<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
			body {
				margin: 0;
				padding: 0;
			}

			.box {
				width: 200px;
				height: 50px;
				border: 1px solid #000;

				/*margin: 50px;*/
				/*margin: 50px 100px;*/
				/* 上，右左，下*/
				/*margin: 50px 150px 150px;*/
				/*margin: 50px 100px 150px 200px;*/

				margin-top: 50px;
				margin-right: 100px;
				margin-bottom: 150px;
				margin-left: 200px;
			}
		</style>
	</head>
	<body>
		<div class="box">外边距的定义方法</div>
	<div><script language="javascript">

	</script></div></body>
</html>
